Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain & Isolated Severe Thunderstorms in Southern California

Snow squalls are likely to cross the Lower Great Lakes this evening and the Ohio Valley through the interior Northeast/northern Mid-Atlantic overnight, before potentially reaching the I-95 corridor from D.C. to New York City early New Year’s Day morning. Heavy rain and isolated severe thunderstorms will impact coastal southern California including Los Angeles tonight into early on New Year's Day. Read More >

Current conditions at

DIABLO GRANDE (DBLC1)

Lat: 37.32927°NLon: 121.29538°WElev: 1861.0ft.

47°F

8°C

Humidity	96%
Wind Speed	SSE 5 MPH
Barometer	NA
Dewpoint	46°F (8°C)
Visibility	NA
Wind Chill	45°F (7°C)
Last update	31 Dec 09:00 PM PST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

13 Miles NE Mount Hamilton CA

Tonight
Low: 42 °F
Rain and
Patchy Fog
New Year's Day
High: 53 °F
Rain
Thursday Night
Low: 41 °F
Rain Likely
then Chance
Rain
Friday
High: 54 °F
Chance Rain
Friday Night
Low: 45 °F
Rain
Saturday
High: 54 °F
Showers
Saturday Night
Low: 44 °F
Showers
Sunday
High: 52 °F
Showers
Sunday Night
Low: 40 °F
Rain

Detailed Forecast

Tonight

Rain. Patchy fog. Low around 42. South southeast wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

New Year's Day

Rain. High near 53. South wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Thursday Night

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 41. South wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.

Friday

A 30 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 54. South southeast wind 14 to 16 mph, with gusts as high as 28 mph.

Friday Night

Rain, mainly after 10pm. Low around 45. South southeast wind 17 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 80%.

Saturday

Rain before 1pm, then showers and possibly a thunderstorm after 1pm. High near 54. Chance of precipitation is 100%.

Saturday Night

Showers and possibly a thunderstorm before 4am, then rain after 4am. Low around 44. Chance of precipitation is 90%.

Sunday

Rain before 10am, then showers and possibly a thunderstorm after 10am. Cloudy, with a high near 52.

Sunday Night

Rain. Mostly cloudy, with a low around 40.